emulatorII-list

> the front panel with led's and buttons is completly dead... Just
> when I power the unit on , it blinks. The display shows some error
> data there.

The buttons and LEDs will all be dead until the E-II OS is successfully loaded. Your first priority is getting the machine to see the disk drives and boot. What is the exact error data seen on the display? Is it scrambled gibberish or a readable error message?

> I just cleaned it. But it behaves the same. The HD works, 5.25"
> floppy works. I just have some blank new disks and one wich have
> (or have had, because I heared them ) just a few sounds on it... but
> now , when I introduce the disk, the floppy mechanism just runs
> and runs... and the display shows some unknown data there...

Again, what is the exact unknown display data? When you "cleaned" it, did that include removing/cleaning/reseating all data and power connections (including those of the disk drives)?

> Second. Since I do not have any sound on the disks, What If I will
> change the floppy with an 3.25''? Can someone tell me what type?

See the group database for compatible drives, however I dont think changing to a 3.5" floppy is the solution to your immediate problems.